What does the term "Deadhead after blooming" mean?

I've been working in my garden (new home owner!!!) and planting some perennials. The tag on my cone flowers states to deadhead the flowers after blooming. I'm not sure what that means or how important it is. Any help would be appreciated!

What does the term "Deadhead after blooming" mean?
When you deadhead (or "dehead") a flower it means that you pluck or snip off a flower that is "spent" (the petals have fallen off or drying out or the flower head is about to go to seed).





Why do peope do this? (1) Some flowers (mostly annuals) will bloom continually throughout the summer for you -- like petunias; (2) I have done this with columbine (perennials) and they have flowered throughout the summer; (3) it prevents bulb plants from using their energy on seed production -- thus saving the bulb; (4) it tidies up the garden and the plant itself -- this is true especially of something like peonies; (5) it's a way to control plants in your garden -- so that they don't spread all over the place by seed (example: garden phlox).





Deadheading something like cone flowers will prolong the blooming period. You won't get many seeds in the end though. And birds love garden flower seeds.
Reply:It means that you should cut the bloom off after it has completely opened (usually after it starts to shrivel and die). This is important to establish new blooms for the next season. Rhododendrons and azaleas are common types of plant that require deadheading. Cut the bloom off just below the flower (there is usually a bulbous part at the top of the stem).
Reply:It means to remove the spent flowers after they have bloomed and are now brown. The reason is to keep the flower from going to seed so that it produces more flowers. If you allow the flower to remain it will then start going to seed which will rob the energy from the plant from producing more blooms and go towards producing seed in order to reproduce.
Reply:you have to pop off what's left of the dry flowers after they bloom. Just pop them off with your fingers. thats dead heading
Reply:It means to cut off the faded flowers before they produce seed. When the plant senses that seeds have been produced then it knows the flowers have done their job for the year and it will either stop producing flowers or produce a lot less.
Reply:Too keep your flowers energy directed toward putting on new blooms. Snip off the flowers when they start to fade.
Reply:Cut the stem back just in front of a leaf
Reply:to remove spent blossoms of herbaceous plants.
Reply:once the blooms are done and starting to wilt, pluck 'em off so that you get more blooms.
Reply:i dont know